<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>控制div属性</title>
</head>
<link rel="stylesheet" href="./css/index.css">
<script src="./js/index.js"></script>
<body>
        <input type="button" value="变高">
        <input type="button" value="变宽">
        <input type="button" value="变色">
        <input type="button" value="隐藏">
        <input type="button" value="重置">
        <div id="box"></div>
</body>

</html>